I note you are flying 3 models. The technique and finesse on a short a/c might not work on a longer model. I flew B733 & B737, then I moved to B738. I banged it in. It is longer. The B733 technique didn't quite work. I adopted my B757 technique, modified for the landing gear length, and found it worked just fine. Therefore I surmise length does matter. That was my experience. There can also be a perceived different at night. Our eyes tell us porkies. Try to be aware if any one model causes more of a problem than another. If not, then think again.